Cylinder lock



June 26, 1945. v H. w. BROOKS CYLINDER LOCK Filed Dec. 9, 1945 PMJnneZB, 1945 UNITED STATES PATENT OFFICE Herbert w. Brooks, West Haven,cum, uslgnor to Sargent & Oompany, New Haven, Conn, a

in the novel features and combinations of parts to be hereinafterdescribed and claimed.

In the accompanyi g drawing:

Fig. lisasectionalviewofalockembo y my invention;

corporation of Connecticut Application December 9, 1943, Serial No.513,545

r Claims- (Cl. 70-363) This invention relates to locks, and more par-Fig. 2 is alsoa sectional view on line 2-2 of ticularly to a lock'ofcylindrical form which may Fig, 1; V l be employed in any relation inwhich a key- Fig. 3 isa sectional view on line 3-3 of Fig. l; operatedlockis desired. Fig. 4 is a. sectional view on line l4 of Fig. 1; Locksof this type very often employ so-called o, and I pin tumblers in thatthey are provided with sec- Fig. 5 is a sectional view, similar to Fig.i, but tional pins extending transversely of a slotted showing the pintumblers aligned by thekey to key barrel, so that when the key isinserted in permit operation of the lock. the slot in the key board thebreaks in the pins I have shown in Fig. 1 of the drawing a lock will bealigned to permit rotation of the barrel. lo comprising a casing formedof acup-shaped body Other cylinder locks arev provided with a pluportion Ill and a. cap oraiace member ,the latter rality of disks orplates slotted to receive a key. overlapping the body of the casing, asshown at the bit of which aligns these plates with the key l2. Withinthe casing thus formed are inner and barrel so that the latter may beturned. outer shells l3 and II, these shells being gen- The presentlock, however, distinguishes, from erally of cup-shaped form, the outerone of which both forms of locks described above in that there isprovided with a key slot l5 which registers are provided within the lockcase a plurality of I with the key opening It in the cap ll of the disksor plates supe one upon the other. casing. The inner shell I3 is alsoprovided with One of these disks is fixed with respect to the lock anopeningv H which registers with an opening case, while the others arerotatable with respect 20, I 8 inthe body it of the casing. l to thecase. The rotatable disks are locked to The two shells l3 and I arespaced apart by the fixed disk by means of sectional pins similar a diskl9 which fits fairly snugly within the body in some respectsyto the pintumblers described portion III of the casing, but is provided withdiaabove, in that, while they normally prevent rotametrically oppositerecesses designed to receive tion of the: rotatabiedisks with respecttothe the transversely turned ends 2! of lugs extending fixed'disk, thebreaks in these sectional pins can upwardly from the cap I! so that thedisk I! is be aligned sons to permit such rotation. In the securedagainst movement relatively to the casing. present instance the extendlongitudinally L This disk, as will be explained hereinafter, serves ofthe key instead of transversely thereof, so that as the locking disk tosecure. the parts against they extend transversely of the disks 01-plates rotatiom It will be apparent from Fig. 4, for exand are pushedinwardly by thekey to be propample, that the disk I5 is substantially ofthe erly aligned. same diameter as the inner diameter of the cas- Oneobject of the present invention is to provide ing portion ill, so thatit will lie between the ends a cylinder lock of novel construction. ofthe inner and outer shells l 3 and It and space A further object of theinvention is to provide 3 these shells apart. i a novel form of cylinderlock comprising a. plu- Within the shells l3 and H and on each siderality oi superposed disks pins extending lonof the disk I! are provideda plurality of rotating gitudinally of the axis or the lock to normallydisks 22 all of similar form and shape. Any delock thediskstogether.sired number of these disks may be provided as A still further object ofthe invention isto pro- 40 desired. As shown, three are provided on eachvide a cylinder lock of novel construction having side of the disk I 9.or six of the disks 22 in all. a plurality of superposed disks mountedwithin a These disks, as shown in Fig. 3, are of generally lock case, atleast one or which disks is held circular form and lie within thesurrounding against rotation and others of the disks locked to shells.They are, however, provided at diametthe secured disk by sectional pinsdesigned to be ricaliy opposite points with lugs 23 which fit withalie'ed by, a key such that rotation of: the movin slots 24 in the shells soas to lock these disks able disks may be effected relativelyto thefixedto the shells. As will also be apparent from Fig. disk and thus serve tooperate a rollback or 3 and Fig. 4, thedisk I9 is provided with openingsother lockingmember. 25 and the disks 2! with openings 25 which regis-To these and other. ends the invention consists ter with the openings 25and with each other when the lugs 23 of the disks are aligned, so thatthe openings 25 and 2 form a continuous open-.

ing or recess longitudinally of the lock casing or parallel to its axis.

ll Within these recesses are mounted sectional of the lock by springs28. As many of the openings 25 and 26 may be provided as desired, but asshown two are provided in each of the plates I 9.

and 22 so that the lock will accommodate two of the sectional pins 21.It will be seen from Fig. 1 of the drawing that when the pins 21 are intheir forward positions, in which they are maintained by the springs 28,the breaks between the sections of the pins do not registerwith theinner and outer surfaces of the disk l9, so that these pins lock theadjoining disks to the disk l9. As the latter is held against rotationrelatively to the casing, and as the forward and rear disks 22 aresecured together by reason ofthe fact that they are secured to theshells I3 and II by the lugs 23, the rotation of the disks 22 and shellsl3 and M will be prevented.

When it is desired to operate the look a proper key 29 is insertedthrough the key slots l5 and IS, the key-being provided with a centralbit por- .tion 30 which isreceived in slots 3| in the plates What Iclaim is:

1. A lock structure comprising a generally cylindrical casing, a. pairof cup-shaped members rotatably mounted therein with their open ends.facing each other, a plurality of disks non-roopenings.

22 and a circular opening 33 in the plate IS. The

key 29 is also provided with pin-actuating mem-' bers or arms 34 and 35,which engage below the sectional Pins 21 and raise these pins until thebreaks therein register with the inner and outer surfaces of the diskl9, as shown in Fig. 5. At this time if the key is turned the'inner andouter disks 22 will be rotated together with the shells l3 and I4, asthe key fits snugly in the slots 3|. The disk I 9 will remainstationary, however, due toits connection with the casing, and the keyis permitted to rotate therein due to the fact that this disk isprovided with a circular opening 33 of a diameter equal-to or slightlylarger than the width of the key bit. It will be understood that thekeyv slot IS in the outer casing is of such a shape as to permitinsertion and withdrawal of the key only in one position, and thereforethe parts must be turned back to their original position before the keyis withdrawn. When the key is withdrawn, however, the sectional tumblers21 willbe forced outwardly by their springs 28 and the parts will againbe in locked position.

An actuating member or post 26 is rotatably mounted at the inner end ofthe casing and secured to the inner shell l3, which operating member mayactuate a locking device of any desired form. This member is providedwith a reduced inner end 31 which passes through the openings' l1 andI8, and a lug or key 38 on the part i 31 serves to secure itnon-rotatably to the shell. Also the enlarged portion of the member 36may be slightly longer at one point to provide the shoulder 39, which isadapted to engage a shoulder or lug 40 extending inwardly from the edgeof the opening l8 to limit the rotation of the post It will be apparent,therefore, that when the disks 22 are rotated and the shell l3 rotatedby reason of the connection of these disks with the shell, the post 36will'also be rotated, as permitted by the shoulder or shoulders 39,which will serve to actuate any locking device connected to the rotatingpost.

While I have shown and described a preferred embodiment of my invention,it will be understood that it is not to be limited to all of the detailsshown, but is capable of modification and variation within the spirit ofthe invention and within the scope of the claims.

2. A lock structure comprising a generally cylindrical casing, a pair ofcup-shaped members rotatably mounted therein with their open ends facingeach other, a plurality of disks in each of said members, the latterhaving slots formed in the walls thereof andthe disks having projectinglugs disposed in said slots to secure the disks nonrotatably to themember, an additional disk mounted between said members and securedagainst rotation in the casing, all of said disks having registeringopenings therein and sectional pins slidably mounted in said openings.

- 3. A look structure comprising a generally cyrotatably mounted thereinwith their open ends facing each other, a pluralityof disksnon-rotatably mounted in each of said members, an additional diskmounted between said members and secured against rotation in the casing,said disk having a notch formed in the edge thereof, said casingconsisting of a body portion and a cap portion, said cap portion havinglugs disposed in said notches to secure the disk nonrotatably to thecasing, allof said disks having registering openings therein andsectional Pins slidably mounted in said openings.

4. A look structure comprising a generally cylindrical casing consistingof a bodyportion and a cap portion, the latter having lugs turnedinwardly and projecting through openings in the body portion, a diskmounted in said casing and being engaged with the inturned ends of saidlugs .a post projecting from the body portion of the casing, and meansconnecting said post to said additional disks to be rotatable therewithrelatively to the casing.

5. A look structure comprising a generally cylindrical casing consistingof a body portion and a cap portion, the latter having lugs turnedinwardly and projecting through openings in the body portion, a diskmounted in said casing and being engaged with the intumed ends of saidlugs to prevent rotation thereof 'relatively to the casing, a pluralityof additional disks oneach side of said first-named disk, saidadditional disks being rotatably mounted in the casing, all of saiddisks having registering openings therein and sectional pins mounted insaid opening, a post projecting from, the body portion of the casing,means connecting said post to said additional disks to be rotatabletherewith relatively to the casing, and cooperating means on said casingand Post to limit rotation of the latter.

' HERBERT W. BROOKS.

